均匀变化温度场中均匀干燥时抗裂圆环的理论分析

本文基于弹性力学方法研究抗裂圆环中干缩变形与温度变形的协同作用,给出了抗裂圆环在均匀变化温度场中水泥基材料发生均匀干缩变形时的径向、环向应力分布、径向位移分布、径向和环向应变分布。通过研究发现:在均匀变化温度场中发生均匀干燥时,水泥基材料抗裂圆环受力状态由温度变化及干缩变化综合作用决定;干缩变形的大小对温度变形有制约作用;温度变化的幅度大小对各种分布值的大小也有显著影响。

Theoretical analysis on breaking ring in homogeneous drying process with uniform temperature field

This paper uses the elastic mechanics method to study the behavior of a breaking ring in both dry shrinkage deformation and temperature deformation, including the distributions of its radial stress and circumferential stress, radial displacement, and radial strain and circumferential strain caused by the homogeneous drying shrinkage of its cementing material in given uniform temperature fields. The results reveal that the strain in this cement-based material ring depends on the combination of temperature deformation and drying shrinkage deformation. And the drying shrinkage deformation influences temperature deformation; temperature variation has a significant effect on all the distributions.